In Terms of Intellectual Development, One Important Conclusion from Adoption

question 144

Multiple Choice

In terms of intellectual development, one important conclusion from adoption and twin studies is that the more two people in a family are alike genetically, __________.

• A)the higher the correlation in their IQ scores
• B)the less correlated their IQ scores are
• C)the greater the diversity in subskills on an intelligence test
• D)the greater the likelihood that there will be children with very low IQ scores in the family

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Definitions:

Total Variation

The overall measure of variability or spread in a dataset or the sum of explained and unexplained variation in a model.

Independent Variable

A variable in research or experiments that is manipulated or controlled by the researcher to observe its effect on the dependent variable.

Significance Level

The threshold below which a p-value is considered statistically significant, commonly set at 0.05.

Predicting

The act of forecasting future events or trends based on current or historical data.